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Victron Energy

SCC010020020

BlueSolar PWM-Light 12/24V-20A charge controller

The VICTRON ENERGY BlueSolar PWM-Light 12/24V-20A charge controller is a reliable and cost-effective solution for small off-grid solar systems. Part of the "light" PWM range, this entry-level model provides optimized 3-stage battery charging with low-voltage disconnect, automatically detecting 12V/24V battery voltages. The controller is supplied alone.

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28,38€

28,38€ ~~34,80€~~

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Low stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

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Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

Product use	Solar power management in off-grid systems
Type de régulateur solaire	PWM (Pulse Width Modulation)
Max charge current (A)	20
Nominal voltage	12/24 V
Plage de tension d'entrée solaire	Up to 55 V
Absolute maximale solar tension	55 V
Chimies de batterie supportées	Lead-acid (AGM), Lead-acid (GEL), Lead-acid (Flooded)
Nombre d'entrées panneaux solaires	1.0
Sortie consommateur supportée	Oui
Nombre d'étapes de charge	3.0
Wired network	None
Cooling method	Natural convection
Protection features	Reversed battery polarity,Reversed solar panel polarity,Short circuit at output,Overload,Overheating
Display type	LED 2-digit 7-segment display
Mounting type	Surface-mount installation
IP rating	IP20
Operating temperature range	-20°C to +50°C
Housing material	Plastic
Weight	0.15 kg
Dimensions (W x H x D)	133 x 70 x 33.5 mm
Commande hors stock autorisée	Yes
Catégorie de produit	Merchandise / GENHY / 38
Vente autorisée	Yes
SKU du produit	SCC010020020
Quantité virtuelle disponible	3

Detailed description

The BlueSolar PWM-Light 12/24V-20A charge controller from VICTRON ENERGY is an economical and reliable solution for managing solar energy in 12V or 24V off-grid systems. This model uses PWM (Pulse Width Modulation) technology to regulate battery charging with a nominal current of 20A, automatically detecting system voltage. It features a three-stage (bulk, absorption, float) smart charging process to optimize battery life, though these stages are not programmable.

Key Features and Protections

This controller stands out for its simplicity and comprehensive protections. It provides a load output with automatic disconnect in case of low battery voltage, preventing excessive discharge. A two-digit, seven-segment display allows quick configuration of load output functions, including a timer for lighting control. Built-in protections include reversed battery polarity (via fuse), output short circuits, overload, and overheating, ensuring safe operation. It features common positive grounding and operates in a temperature range from -20°C to +50°C.

Positioning and Comparison

The BlueSolar PWM-Light 12/24V-20A is positioned as a cost-effective alternative to VICTRON ENERGY’s more sophisticated MPPT controllers, such as the BlueSolar MPPT or SmartSolar MPPT series. While MPPT controllers maximize solar panel efficiency by continuously adapting voltage, the PWM-Light model is ideal for installations where cost optimization is critical and the power loss associated with PWM technology is acceptable. It suits applications such as standalone lighting, small solar setups for cabins, camper vans, or medium-capacity vans, and battery maintenance. Its IP20 rating indicates use in sheltered environments, similar to many electronic devices not directly exposed to weather.

Expert opinion

Pol CONIN

Digital Manager

« Analysis of Victron Energy BlueSolar 20A PWM solar charge controller »

The VICTRON ENERGY BlueSolar PWM-Light 12/24V-20A charge controller is a cost-effective choice for maritime and land-based solar installations where budget constraints are significant and solar panels are sized for nominal voltages close to those of the batteries. Its PWM technology, while less efficient than MPPT for power optimization under variable conditions, ensures reliable and stable charge regulation. This model is particularly suited to 12V or 24V systems requiring a modest 20A charging current, such as cabin lighting, small service systems, or communication equipment. The automatic voltage detection and three-stage charging process (bulk, absorption, float) contribute to battery longevity. The presence of a low-voltage disconnect output is a major asset for protecting accumulators. Its IP20 rating requires installation in a dry, protected compartment, typical of technical areas aboard or in a shelter.

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BlueSolar PWM-Light 12/24V-20A charge controller

28,38€

28,38€ ~~34,80€~~

Frequently Asked Questions

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What is the main function of the BlueSolar PWM-Light 12/24V-20A charge controller?

The BlueSolar PWM-Light 12/24V-20A charge controller from VICTRON ENERGY is designed to manage solar energy in 12V or 24V off-grid systems. It regulates battery charging from solar panels using PWM technology, thereby optimizing battery lifespan.

Which charging technology does this Victron Energy controller use?

This controller uses PWM (Pulse Width Modulation) technology, making it a cost-effective solution for solar charge regulation.

What is the nominal charging current of this controller?

The nominal charging current for this model is 20 amperes (20A).

Does the controller automatically detect system voltage?

Yes, the BlueSolar PWM-Light 12/24V-20A charge controller automatically detects system voltage, whether it is 12V or 24V.

What temperature range can this controller operate in?

This controller is designed to operate within a temperature range of -20°C to +50°C under full load.

Does the BlueSolar PWM-Light 12/24V-20A charge controller have a display?

Yes, it is equipped with a two-digit seven-segment display, which allows for quick and easy configuration of the charge output functions, including the timer setting.

What is the battery charging process used by this controller?

The controller uses a three-stage smart battery charging process:

Bulk: Fast-charge phase where maximum current is applied. Absorption: Voltage is held constant to ensure a full charge. Float: Voltage is reduced to maintain the battery at full charge without overcharging.

Are the charging process steps programmable?

No, the charging process steps (bulk, absorption, float) of this controller are not programmable.

What protections are integrated into this charge controller?

The controller includes multiple protections for safe operation:

Protection against reverse battery polarity connection (via a fuse). Protection against output short circuits. Protection against overload (shuts off after 60 seconds at 130% load, after 5 seconds at 160% load, immediate shutoff in case of short circuit). Protection against overheating.

What is the maximum solar voltage this controller can handle?

The maximum solar voltage this controller can handle is 28 V for a 12 V system and 55 V for a 24 V system.

What is the controller's own consumption?

The controller's self-consumption is less than 10 mA, ensuring minimal battery discharge when there is no solar production.

How is the load output managed by the controller?

The load output provides an automatic disconnect function in case of low battery voltage, preventing excessive discharge. It can also be controlled manually.

Does the controller offer a lighting control function?

Yes, the controller includes a lighting control function with a single timer, configurable via the two-digit seven-segment display.

Which battery voltages are compatible with this controller?

This controller is compatible with 12 V and 24 V battery systems, with automatic system voltage detection.

Which types of solar panels are recommended for a 12 V system?

For a 12 V system, it is recommended to use 36-cell solar panels.

What types of solar panels are recommended for a 24V system?

For a 24 V system, it is recommended to use 72-cell solar panels or two 36-cell panels connected in series.

Is this controller compatible with lithium batteries?

This PWM charge controller is designed with typical charge voltages (absorption and float) for lead-acid batteries (14.2 V / 28.4 V in absorption and 13.8 V / 27.6 V in float). It is not explicitly specified as compatible with lithium batteries in the provided documentation.